Most people have a past they can look back on. Eri, however, has no memories prior to when she started seventh grade, which was four years ago. Now, she's a junior at Sunnyside High whose only worries are keeping her grades up and staying out of the way of the school player. Until one day, a strange teacher tells her that everything Eri thinks she knows about herself is wrong. Her name, family, and even birthplace are all false. Her true name is Eraline, she's from a royal family in a fantasy world, and that world needs saving. And apparently, it is her responsibility to save it.